Question # 1

Pitch of the sound determines

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Its shrillness

Loudness of sund

Intensity level

Quality of sound

The energy content of a wave is proportional to its.

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Wave velocity

Wave velocity squared

Frequency

Amplitude squared

Polarization of light shows that light is.

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Corpuscular in nature

Of extremely short waves

Longitudinal waves

Transverse waves

A LASER beam may be used to measure very large distance because it is.

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Unidirectional

Coherent

Monochromatic

Massive

Polarized sunglasses decrease glare on a sunny day because they

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Completely absorb light

Block a portion of light

Have a special colour

refract light

Velocity of sound in air at a given temperature

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Increases with increase in pressure

Is independent of the pressure

Decreases with increases in density

Increases with increase in density

A plane of polarization is one in which

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vibrations take place

No vibrations take place

Longitudinal vibrations take place

Transverse vibrations take place

The phase different between the particles vibrating's between two consecutive nodes is.

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0

Lamda /2

2

2 lamda

The main advantage of a grating over Young's apparatus is the

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Sharpness of the bright lines

Absence of dark fringes

Absence of bright fringes

Greater deviation of light

Which of the following are examples of transverse and a longitudinal wave.

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Radio and sound waves

Radio and light waves

Light and water ripples

Light and sound waves

Palaroids can be used

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To control headlight glare in right driving

To determine the concentration of the optically active substances

In curtain less windows to adjust the amount of light

all of the above

The wavelength is the distance along the line of wave propagation between two successive particles which have equal

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Velocities

Phases

Amplitude

Displacements

In order to har an echo what is the minimum distance between the sound and reflecting surface.

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0.65 m

16.5 m

1.65 m

165 m

The sweetness or harshness of a sound depends upon its

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Wavelength

Frequency

Amplitude

Regularity

Light product by a single Nicole is

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Unpolarized

Plane polarized

Circulatory polarized

Elliptically polarized

Velocity of sound in any medium deepness upon.

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Elasticity

Density

Volume

Mass

Sound wave in air are

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Longitudinal waves

Transvers waves

Electromagnetic waves

Matter waves

If the wave length of a wire is 1 cm and its period is 0.02 s, the velocity of the wave will be

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20 cm s-1

50 cm s-1

60 cm s-1

100 cm s-1

What is shapes of a pure note

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Sinwave

Sawtooth

Square wave

Triangular wave

Monochromatic ight is of single.

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Frequency

Wave length

Amplitude

Pitch

Which effect explain the frequency shift that occurs when there is motion sound a listener or both relative to the medium.

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Early effect

Doppler's effect

Hall effect

Zeeman effect

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